Apparatus for heating and measuring water.



D. R. YARNALL. APPARATUS FOR HEATING AND MEASURING WATER. APPLICATION FILED APR.8, 1912.

LQGQSOS, Patented June 17, 1913.

FIQ 1 9 A TTORNE Y of water from a meter APPARATUS FOR HEATING AN MEASURING WATER.

Specification of Letters Patent.

Application filed. April 8, 1912. Serial No. 689,144. 1

To all 'whom it may concern Be it knoun that 1. DAVID ROBERT YAnxALn, a citizen of the United States. residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a certain new and useful Apparatus for Heating and Measuring "Water, of which the following is a specification.

The purpose of my invention is to heat water within one of the water holding compartments of a weir meter.

A further purpose of my invention-is to provide positive control of the withdrawal storage compartment used as a heater by automatic control of the pump.

'A further purpose of my invention isto control the return and make-up water for anyheater system proportionately to the height of water in the storage compartment in a preferably pressure-tight gravity meter.

A further purpose of my invention is to provide a heater within the effective compartmentsot a meter, and to control the water admitted to the meter and, preferably, also the make-up water, in proportion to the height of water in the storage tank of the meter.

A further purpose of my invention is to place the measuring tank of a gravity meter, a portion of the storage therefrom and a water heateror as many of them as possible, in line vertically, with the pump preferably below the meter storage compartment, to econon'iize floor space. piping and expense and reduceheat lo A further purpose of my invention is. to

pretcmbly extend the discharge or storage compartment of a weir meter beneath the receiving; compartment thereof and toplace a waterheater in the n i rmal storage space, as well where the storage is so extended in the space extending beneath the receiving compartment.

A. further purpose of my intention is to connect any suitable waterhcater ettectively within a weir metcr, placine' it before or after the weir in the meter as required or desired because of other ct:nsideratiims a tand to control the supl'rom the water heater.

feeling the e na g'e be practical,

the make-up water and the operation of the pump, preferably controlling all of these and all automatically by the heightof Water within the storage chamber of the meter, maintaining pressure within the meter casing or not, as desired.

A further purpose of my invention isto deliver feed water directly from a meter measuring compartment to a water heater, preferably within the same meter casing, providing a self-contained meter unit, within one compartment of which a closed water heater may be located.

I prefer to illustrate my invention by forms thereof which I have determined to efficient and relatively inexpensive, and which at. the same time well illustrate the principleas-thereof.

Figure 1 is a side elevation, partly in vertical longitudinal section, of the preferred form of my invention. Fig. 2 is a section of the structure of Fig. 1. upon line 22 thereot, looking in the direction of the arrows. Fig. 3 is a side elevation of a structure similar to Fig. l. showing my invention. Fig. at is a partial section upon line 4% of Fig. 3 looking in the direction of the arrows. Fig. 5 is a broken section on the line 5--5 of Fig. 3 of my preferred construction showing my float and some of its connec tions.

Similar numerals of reference drawings indits'ate like parts.

In my preferredezform I show a meter tank 1, provided with thermostatic valve 2 and flap or vacuum-break valve 3, shown in my co-pending application Serial No.

in the (3871330, for fluid meter, tiled ..-tpril 1, l$. l2,

for the purpose of exhausting the spr'e within the con'ipartments 4e and 5 ot air,

when the pressure within the meter casing exceeds atmosplmric pressure, and of pre venting vacuum within the chamber when connected so as to benefit from pressure conditions there.or,with, reversed setting of the valve. tor preventing pressure when intended for use with vacuum pans or surface condensers. The detail of these valve structures is not intended to be claimed independently by me. and tor that reason they are not more 'l'ullv illustrated. For their Patented June 17,1913.

scribed hereafter.

' supp y, from whatever source.

construction and use, further than here H1- dicated, I would refer to my co-pending uplication above stated. r

I-lm ve preferred to illustrate not only a gravity meter, but a meter of the weir type, Whose upper. or receiving chamber 4 .and storage chamber 5 are in full communicatic at their upper ends fore'xchajnge of pre sure, gas and vapor, so that-thesame conditions of pressure or vacuum are maintained throughout. The same is true of the float chamber 6 illustrated, Whether this float chamber be actually Within the meter ci1sing, as illustrated and preferred,or not. It is intended to be kept in communication with the other chambers both above-and be low thewa'ter level: It contains the float 7 through whose rod-8 any form of recorder or integrator Within the casing 9 may be operated, one form of which is fully disclosed in U. S. patent to Lea 815,102. In eachof my forms, also, I prefer to introduce the Water to the floatv chamber 6 through screened opening 10, controlleclby valve 10" through handle 10 I haveshown weir 11, and zero point 12 in line with a sight opening. I have used a balile plate 13, to free the water in proximity 'to'the weir from disturbanceby the intake water. Y

I prefer'to introduce the intake Water through a controlling valve 14 and to automatically control the admission of water by a valve 15, which will be more fully de- The intake water may be, for example, return water, coming from any art of a heating system, or cold water I have shown theintakc as connected through a receiving or storage equalizing tank 16 in Fig. 1; and as comin from any tank 17 in F ig. 3. I I prefer to atImit the make-up Water into the measuring meter compartment, as through pipe 18 controlled'by hand valve 19, --and preferably normally closed auto -matic valve 20, hereinafter more fully described. In" this case I prefer to introduce it upon the opposite side from the weir of the baffle plate 18, so as to reduce the disturbing influence 0f the influx .of water at this point. However, the quantity of makeup water used-,w'ill be'ordinarilyvery small and ,I referl-hotto insert ituntil the low level of the water in the storage compartment indicates failure to receive suflicient supply'from the return water. The e1- forated plate 21 reduces water surging without interfering with the operation of the meter. I

I provide for control of the inlet and discharge'water admitted to and taken from the weir tank, preferably using the same means for control of both. I have illustrated one form of this in a float .ZQconnected by lever arm 23 with a shaft 24 in a.

Water should not be'as [operation substantially in proportion pocket 25. The rod passes out of the pocket near this connection and is packed at 26, so as to lie chiefly exterior to the tank, as at This shaft is' supported in suitable bearing 27 and carries lever arms in proportion to the number of valves to be operated by it. In the illustration it starts, stops and regulates the. pump, controlling the discharge 36 through valve 36. -The connections shovvn are a 'lever 28, Fig. 2, upon the rod, a valve 9.9 inthe steam supply pipe 30 for the pump 31 and a rod 32 and valve stem 32' between, whereby be started and stopped or controlled by reason of the rise or variation of. the water height in the storage compartment 5 of the meter. I have controlled the intake water similarly an'd'have illustrated, for this purpose, a lever arm 34, upon the, opposite side of the shaft from the lever arm 28. It operates a rod 35 adjustable by turn-buckle 35,

pivoted at 38,-israised, lifting the stem 89 to open the valve 15 and admit additional intake Water as the level of the water at 33 is reduced, or cut off the main intake supply of 'Water as the height of Water at 33 is in creased.

The make-up Water is preferably. controlled by the same means as that which controls the main intake, or by coincidentally operating means. I have preferred to control this by lever 41 upon the same shaft 24 as the other levers to which I have referred, and connect the lever 41 with the valve 20 by any suitable rod 42 and stem 43. It will thus be seen that any increase in water level Within the storage compartment 5 will result the pump may fall of the level 33 due to whereby lever 37,;

in increasing the supply of steam to the pump at the same time that the main intake valve is partially closed and that the make-up water may be correspondingly reduced or shut as. I prefer that the control of the make-up sensitive as the control of the main intake and that the valve in the make-up Water pipe shall be normally closed, in order that the make-up Water may not be drawn upon to make up or equalize minor inequalities or delays in delivery of the return Water, but may be drawn upon to make up permanent shortage and permanent shortage only. One construction which insures this operation of the normally closed make-up water valve 20 is shown in Fig. 4. In it I provide a slot the rod 42, so that the pin 45 upon the arm 41 may not engage the end of the slotuntil the level of thewater at enough to indicate Shortage of water.

It will be evident that I provide for a serious or permanent pump to the evaporation atthe boiler, since I determine the pump operation by the mean return in the lower end of 33 becomes low weir or of any forms a vapor seal nos-anus atrorn' 'the heating-system. The maize-up Waterapplied issrnalln To provide for repairs tothe meter unit I have shown a bypass 46 within which 1 have placed a valve 4'7.

The height of water in the storage chamber of the meter is shown in, a gage glass 4-8. ld ihile theau-tomatic control oi" the main and nakempwater intalres and the; operation of the pump by the float 22 .tully protee. against tlooding'ot' the meter, whether mentot' this automatic control might make further protection desirable or neccssanv.

and I have. therefore, supplied additionalusedas auxiliary to protection whichimay be the automatic controlandicated or may be advantageously employed part of the a-utornatic"control is not desired.

Eat any suitable upper water limit 4-9 I place an overflow pipe 50, which. might be easily vented (to the atmosphere but for the preferred use I of my construction under p'r-essu-reor vacuum meter conditions. 1

haveaccommodated this -overflow to pressure or vacuum nterchangeably at the same time that lihave' made it operative as are silientsatety valve, by connection thereto or" a U tube 51, comprising arm's-52 and I meter to have the outletfihfrom' arm 53,

at the same level as the overflow opening 49; so that water will ust flow out freely as the level'o-f 49 is reached. hen the water lies below the levelof the opening e9, this opening), and consequently the content of the tulle is exposed to whatever pressure or vacuum conditions are maintained within the meter casing. T he protective action of the-tube will be readily understood from the discussion of its operation under pressure. With a vacuum'the conditions are reversed. "l i hatever the pressure in the meter casing, the water in the arm 52 will be correspondinpgly depressed until the weight of the water inthe unbalanced portion within 53 corresponding to the extent of depression of the water in the arm equals the pressure within the meter casing. The static pressure of the unbalanced column oft-he water is thus used to counter-balance the pressure within the casing. Any increase of pressure within the casing will shove the water down a l'ittlefarther in the arm 52, against a re silient'or cushioned resistance, spilling a little more water out of the opening at 5%, Wh'ile'a reduction of pressure within the casing will result in the unbalanced column within arm I forced up somewhat within arm Unlike the ordinary safety valve. the pressure is relieved somewhat at and by the tubeas the pressure approaches the limit at which it is intended to be released. The tube thus at all times unless and when all or any being reduced as the water is other gra'vity type, dorangefeed water heater purposes.

until. the pressure within the meter tank exceeds the weight of the column of water within the arm of the tube, at which time the vapor is given free il(( lo the atmosphere through the tube. This tree vent of the meter casing, once I until the tube is again filled with water. The pressure at which the vent may take place. i. c. the limit of pressure set for the interiorof the meter casing. can lie-accurately predetermined by the height of the U tube.

I use a portion of the effective meter for This is most advantageously done within the storage coinpartment; which can be extended to give additional length for the tubing and dcsirably of good sized horizontal sectional area. as well as-dcpth, readily accommodatin o; the heater pipes. Either compartment of course. could extendfrom wall to wall of the meter casing in either direction malting it conveniently accessible for admission begun. will continue and discharge heater connections. My pre- {erred heater, too. difiers from usual closed heaters in that the steam passes through the pipes and'the water surrounds them. It is further highly preferable to place the heatingmeans in the eitecti e storage compartment rather than the receiving compart-- ment, since the water would otherwise have opportunity to cool in the relatively l? go storage required in the other compartment, which cannot be.withdrawn'tco closely to the bottom. lest the pump be damaged by drawing" air instead of water and racing correspondingly. I have therefore preferred to'seleci the storage compartment for the location of my heater within the meter. and show steam tubes therefor. In Fig. 1 i have shown the storage compartment as extended below thereceiving' and measuring compartment, as at 55, itself highly advantageous 'n increasing the storage without increase of floor space re uired and have made use of a portion ct this extended storage space, as well as a portion of the storage space not under the receiving and measuring compartment, for water heater purposes.

I have shown steam pipes 56 as extended from end to end of the meter casing. connecting' with headers .37. 58 to form a closed feed water heater within the storage compartn'ient. l supplv preferably exhaust steam thereto by. means of pipe 59 and w1tl1-. draw the steam therefrom at 39. l have V pass from the right end, in the view, above thebafiie plate around the. end of the plate to'the right end, in the View, below the bafiie plate where discharge of the storage water thusheated, takesplace. Assuming .that the pressure 1 within the steam tubes "of the closed water heaterv shown will within the meter casing, I have provided for delivery'of the water ofcondensation from the said tubes to the receiving or float chamber-compartment of the meter by reason of this difference in pressures, connecting the header 58 with the receiving. compartment of the meter, below the water level thereof, by piping shown at 61. and 62, check valved against return at 62'. It is valvedat'68 and 64- so that a pump er return trap 65 and connections 66- and 67,. valved at 68 and 69, may be used for delivery of this water to the meter compartment where the pressure doesnot accomplish this result.

The space between the tubing of the heater is utilized as storage space Within the storage compartment of the meter with out interference with its function as Water spaeefor heater purposes, resulting in considerable economy of space. Correspondingly, the same storage space can-be obt'ained within the meter with but slight enlargement of the meter casing, the enlargement equaling the, volume of the tubing only, greatly reducing the'cost as well as the space required and making it possible to place afeed water heater on the same floor space already in use for the meter and at substantially the same ele ation.

Having thus-described my invention, what I claim as new and-desire to secure by Letters Patent is I 1. In an apparatus for heating and measuring water, a water receiving meter compartment, a water storage compartment, means for measuring gravity flow of water from the receiving to the storage compartment and a continuously operative closed water heater entering the water 'space of the storage compartment.

2. In an apparatus for heatingv and n'ieasuring water, a water receiving meter compartment, a water storage compartment, extending beneath the receiving compartment, means for measuring gravity flow of water from the receiving to the storage compartment and continuously operative closed water must water heating means located in the storage compartment.

3. In an apparatus for heating and measuring water, a water receiving meter 60 I compartment, a water storage compartment. extending beneath the receiving compartment, means for measuring gravity flow of water from the receiving to the storage compartment, continuously operative closed 'nections for normally exceed the pressure] 'tinuously supplying steam to motion from the water heating means located in the lower part of the storage compartment and eon- V conducting steam to said water heating means. i

" 4'. In an apparatus for heating and me asuriirgwater, awater receiving meter Compartment, a; Water, storage compartment,

means for measuring gravity flow of water between the compartments, steam tubing entering said storage compartment beneath the water surface and connections for consgid tubing.

5 In 'an apparatusfor eating 'and,

measuring water, a Water receiving meter compartment, an intake Water 'forsaid compartment, a water storage comconnection partment, a discharge connection from said storage compartment, means for measuring gravity flow of Water between the compartments, continuously operative closed water heating means in the bottom of the storage compartment and automatic intake and dis charge regulation for maintaining a sub stantially uniform height of water in the storage compartment.

6. In an apparatus for heating. and measur ng water, a Water receiving meter compartment, an intake water connection thereto, a water storage compartment, means for measuring gravity flow of water between the compartments, a discharge constorage compartment, water heating tubing in the lower part of the storage compartment, connections for continuously supplying and withdrawing steam to and from said tubing and automatic regulating means for maintaining the water level above the height of the tubing.

'7, An apparatus for heating and measuring water comprising a meter casing divided into receiving and storage water compartments having gravity Water connection betweenxmeans for measuring'flow of water between the compartments by'the head of water in the receiving compartment and a continuously operative closed water heater beneath the water surface in one of the compartments.

8. In an apparatus, for heating and measuring water, measuring and storage.

water compartments, means for measuring gravity flow of .water between the compartments and a continuously operative closed steam tubular heater entering one of said compartments beneath the' water level thereof.

9. In an apparatus for heating and measuring water, measuring and storage water compartments, intake and discharge connections therefor, means for measuring gravity flow of water between the eompartments, a continuously operative closed heater 1n the storage compartment and means for maintain ng the water level 

